Meiocardia

Meiocardia is a genus of marine bivalves in the family Glossidae.

Meiocardia

Peter Massicard · CC BY 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
GlossidaePBDB
Diet
suspension feederPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 65 million years on record.

The record covers at least 66 Mya to 129 ka. No occurrence read is dated outside 72.2 Mya to 11.7 ka.

Late Cretaceous — about 1 of 33 occurrencesLate CretaceousPaleocene — about 4 of 33 occurrencesPaleoceneEocene — about 12 of 33 occurrencesEoceneOligocene — about 0 of 33 occurrencesMiocene — about 12 of 33 occurrencesMiocenePliocene — about 2 of 33 occurrencesPleistocene — about 2 of 33 occurrences74–71 Mya — about 0.2 occurrences71–69 Mya — about 0.4 occurrences69–66 Mya — about 0.4 occurrences66–64 Mya — about 1.0 occurrences64–61 Mya — about 1.0 occurrences61–59 Mya — about 0.6 occurrences59–56 Mya — about 1 occurrence56–54 Mya — about 0.7 occurrences54–52 Mya — about 0.6 occurrences52–49 Mya — about 0.6 occurrences49–47 Mya — about 0.9 occurrences47–44 Mya — about 1 occurrence44–42 Mya — about 1 occurrence42–39 Mya — about 3 occurrences39–37 Mya — about 3 occurrences37–34 Mya — about 1 occurrence34–32 Mya — about 0.2 occurrences22–20 Mya — about 0.2 occurrences20–17 Mya — about 0.5 occurrences17–15 Mya — about 3 occurrences15–12 Mya — about 5 occurrences12–9.8 Mya — about 2 occurrences9.8–7.4 Mya — about 1 occurrence7.4–4.9 Mya — about 0.7 occurrences4.9–2.5 Mya — about 2 occurrences2.5–0 Mya — about 2 occurrences66 Mya129 ka74 Mya0 Mya

33 occurrences of Meiocardia on record, most of them in the Eocene. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

33 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

10 formations

Castle Hayne — 34.44°N, 77.89°WCastle Hayne — 34.23°N, 77.94°WCastle Hayne — 35.11°N, 77.04°WSantee Limestone — 33.35°N, 80.25°WSantee Limestone — 33.41°N, 80.30°WGrand Bay — 12.47°N, 61.42°WTogopi — 5.50°N, 117.00°EManiobra — 33.63°N, 115.68°WSelsey — 50.80°N, 1.21°WOiching — 47.92°N, 13.00°ETroy Limestone — 18.19°N, 76.47°WStevns Klint — 55.57°N, 12.82°ETermofourà — 45.05°N, 7.80°E

Loading coastlines…

The named rock units Meiocardia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.

Meiocardia and its relatives

Eocene

Where Meiocardia and its relatives were recorded in the Eocene.

Found in the same rock

939 taxa

The Paleobiology Database records 21 sites for Meiocardia, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

20 references

Each of the 33 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 8 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Meiocardia

Credit
Peter Massicard
Licence
CC BY 4.0
Commercial use
the licence allows it

3D scan

Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it
Specimen
Meiocardia moltkiana

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itGlossidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Adams and A 1857)